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JCI Journals


JCI early table of contents for Nov. 19, 2012

Researchers identify new therapeutic approaches for acute myeloid leukemia (AML), find immune cells defective in Huntington's disease, and discover signaling pathways contributing to muscle weakness in myotonic dystrophy. Targeting C/EBPG and C/EBPA, or normalizing GSK3β activity may help treat these conditions.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2012

A code of silence in acute myeloid leukemia

A study published in the Journal of Clinical Investigation found that a transcriptional regulator called C/EBPG was highly expressed in AML samples with an epigenetically silenced C/EBPA gene. By blocking this epigenetic modification, researchers were able to reduce C/EBPG and restore normal myeloid blood cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 19, 2012

JCI early table of contents for Nov. 12, 2012

Researchers investigated intravaginal immunization and its potential to enhance local immune systems against sexually-transmitted diseases. Additionally, a study on HERV-targeted immune responses found that targeting cellular immune responses could eliminate HIV-infected cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 12, 2012

JCI early table of contents for Nov. 1, 2012

A study published in the Journal of Clinical Investigation identifies a rare mutation in the DGAT1 gene as the cause of congenital diarrheal disorder. Additionally, research on natriuretic peptides reveals their role in enhancing human skeletal muscle metabolism and increasing fat oxidation.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2012

JCI early table of contents for Oct. 24, 2012

LncRNAs have been found to regulate gene expression in various diseases, including brachydactyly and HELLP syndrome. Additionally, research on obesity has shown that early genetic intervention can rescue mice from obesity-induced metabolic disorders. Furthermore, editing mistakes in miR-376 cluster have been linked to invasive brain tu...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 24, 2012

The missing 'lnc' in human disease

Two papers connect long non-coding RNAs to inherited conditions in humans, revealing a chromosomal translocation disrupting expression of PTHLH and SOX9 genes. A lncRNA on chromosome 12 is also linked to the development of the placenta.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 24, 2012

JCI early table of contents for Oct. 15, 2012

Researchers discovered that interleukin-36 may be a useful therapeutic target in the treatment of psoriasis, finding that mice lacking this protein were protected from immune-mediated skin inflammation. Additionally, studies on hypertension revealed that endoplasmic reticulum stress in brain cells contributes to high blood pressure, an...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 15, 2012

Scratching the surface of psoriasis

A study published in the Journal of Clinical Investigation found that mice lacking interleukin-36 (IL-36) were protected from psoriasis-like skin inflammation. This suggests that targeting IL-36 could be a promising approach for treating psoriasis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 15, 2012

Sinusitis: Leaving a bad taste in your mouth

Researchers found that T2R38 is expressed in upper respiratory tract cells and activated by bacteria, correlating with increased susceptibility to sinus infections. Genetic variation in the T2R38 gene contributes to individual differences in respiratory infection risk.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 8, 2012

JCI early table of contents for October 8, 2012

Researchers found that common polymorphisms in the T2R38 gene were correlated with the incidence of bacterial sinus infections, demonstrating a genetic link to individual differences in respiratory infection susceptibility. In companion pieces, studies on PSD-95 expression and progranulin deficiency shed light on potential therapeutic ...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 8, 2012

JCI early table of contents for October 1, 2012

Researchers at the Medical University of South Carolina found that saturated fatty acids and specific metabolic pathways contribute to diabetic cardiomyopathy in mice. Additionally, a study published by Helen Hobbs' group identified the mutation PNPLA3 as a contributing factor to non-alcoholic fatty liver disease in mice.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 1, 2012

Putting a 'HEX' on muscle regeneration

Researchers found that HEXIM1 blocks gene expression necessary for muscle regeneration after injury, leading to increased muscle mass and function in mice with reduced HEXIM1 levels. This suggests that HEXIM1 may be a key regulator of skeletal muscle regeneration and a potential therapeutic target for degenerative muscle diseases.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 1, 2012

JCI early table of contents for September 24, 2012

Researchers at University of California, Berkeley report that epithelial cells in cornea express small antimicrobial peptides to defend against bacterial infections. High levels of prolactin block expression of kisspeptin, a protein hormone that induces secretion of GnRH, leading to infertility in women.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 24, 2012

Small proteins in the cornea protect against bacterial infection

Researchers at UC Berkeley discovered that corneal epithelial cells express small antimicrobial peptides to defend against bacterial infection. These peptides prevent bacteria from binding to epithelial cells and are crucial in protecting the eye against infections, as evidenced by mice lacking cytokeratin 6A being more susceptible.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 24, 2012

JCI early table of contents for Sept. 17, 2012

Researchers develop a non-invasive method to track Huntington's disease progression by detecting mutant huntingtin protein in immune cells. Additionally, CXCR1/2 inhibition improves pancreatic islet survival after transplantation, and the loss of thyroid stimulating hormone contributes to osteoporosis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 17, 2012

JCI early table of contents for Sept. 10, 2012

Researchers develop a human liver-chimeric mouse model to study malaria parasites and understand human host/parasite interactions. Additionally, studies reveal the link between serum ferritin levels and insulin sensitivity, as well as the role of granulocyte-colony stimulating factor in protecting against influenza infection.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 10, 2012

JCI early table of contents for Sept. 4, 2012

Ovarian cancer cells activate the HOXA9 gene to create an environment that supports tumor growth. Researchers also found blocking TGF-β expression in ovarian cancer cells significantly reduced tumor growth. Additionally, anti-CTLA therapy and inflammation-reversing treatments may hold promise for treating ovarian cancer and alcoholic l...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 4, 2012

JCI early table of contents for Aug. 27, 2012

Researchers at the University of Iowa have developed a mouse model of Fukuyama's muscular dystrophy, providing insight into disease development. Vitamin B3 has also been shown to aid in fighting staph infections by increasing C/EBPε expression in mice. Meanwhile, a new class of cerebrospinal fluid-based biomarkers for neurodegenerative...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 27, 2012

JCI early table of contents for Aug. 6, 2012

Researchers found that CCR9 is abundant in early stage colon cancer but lacks in invasive and metastatic cancer, suggesting its role in reducing cancer spread. Activation of NOTCH promotes degradation of CCR9, inhibiting the chemokine-induced signaling pathway.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 6, 2012

Identifying a new target for ALS treatment

A recent study found that an inflammatory monocyte population plays a key role in ALS progression, suggesting it as a potential therapeutic target. Monocyte depletion reduced cellular recruitment to the spinal cord, decreased CNS cell death, and extended survival time in mice with ALS.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 6, 2012

Improving human immunity to malaria

Researchers developed transgenic P. falciparum to study human antibody response to surface proteins. They found that antibodies targeting PfEMP1 mediate human immunity to malaria, with reduced risk of symptoms.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 1, 2012

JCI early table of contents for July 23, 2012

Researchers found that miR-122 modulates fat and cholesterol metabolism and has a tumor suppressive function in hepatocytes. A mouse model with MiR-122 loss of function also promoted breast tumor growth by differentially regulating ERα and ERβ.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 23, 2012

MiR-122 micromanages liver function

A recent study found that miR-122 is involved in modulating fat and cholesterol metabolism in the liver. Additionally, it may have a tumor suppressive function in hepatocytes, suggesting its potential as a therapeutic target for hepatocellular carcinoma. The molecule's role in liver homeostasis has also been highlighted.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 23, 2012

JCI early table of contents for July 16, 2012

Researchers have discovered a new target for treating acute myeloid leukemia by targeting cyclin-dependent kinase 1 (CDK1), which promotes differentiation of cancer cells. Additionally, inflammation has been found to play a significant role in age-related retinal degeneration.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 16, 2012

A new target in acute myeloid leukemia

Researchers found a new pathway activated by FLT3 mutation in acute myeloid leukemia, leading to the activation of CDK1 and promoting cell differentiation. Clinical trials with CDK1 inhibitors are underway, suggesting therapies targeting this pathway may be effective for patients resistant to existing treatments.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 16, 2012

JCI early table of contents for July 9, 2012

Researchers have identified a protein called α9β1, which inhibits airway smooth muscle contraction and may be used to develop treatment options for asthma. Additionally, studies have shown that LRH-1 plays a crucial role in glucose-sensing and coordinating glucose and lipid metabolism in the liver.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 9, 2012

JCI early table of contents for July 2, 2012

A novel gene variant associated with reduced cholesterol levels has been identified in human populations. Additionally, a new approach for treating Parkinson's disease using embryonic stem cell therapy is proposed. Furthermore, research suggests that brain indoleamine 2,3-dioxygenase 1 (IDO1) plays a crucial role in the concurrence of ...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 2, 2012

Gene variant reduces cholesterol by 2 mechanisms

A gene variant in sortilin, responsible for higher protein expression in liver, has been found to reduce cholesterol levels. The study reveals two mechanisms: increased LDL degradation and decreased APOB secretion via lysosomal targeting.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 2, 2012

JCI early table of contents for June 25, 2012

Scientists identify WNT signaling pathway as potential therapeutic target for obesity. Antibiotic treatment after Lyme disease shows fluorescent bacterial debris remains without causing infection. Oxidative stress contributes to parasite persistence in host tissues, opening new avenue for anti-Trypanosoma cruzi drugs.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 25, 2012

The skinny on what makes us fat

Research found that SFRP5-deficient mice showed increased metabolic activity and were resistant to diet-induced obesity, revealing the mechanism of SFRP5-mediated fat cell generation. The study suggests targeting the WNT signaling pathway could be a therapeutic approach to treat obesity.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 25, 2012

JCI early table of contents for June 18, 2012

Studies found that DNA damage activates NF-κB, a transcription factor driving cellular aging. Inflammation was also linked to oxidative stress, senescence, and degenerative changes caused by aging. Meanwhile, social isolation disrupted neurotransmission in young rodents, affecting AMPA receptor delivery and synaptic function.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 18, 2012

JCI early table of contents for June 11, 2012

Researchers have identified new therapeutic targets for cancer treatment by studying the interaction between natural killer cells and tumor cells. A study found that targeting JAK1 and JAK2 kinases may aid in eradicating tumors resistant to NK cell killing. Additionally, another study revealed that periostin plays a crucial role in chr...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 11, 2012

Fighting cancer with the immune system

A recent study found that targeting the JAK1 and JAK2 tyrosine kinase pathways can increase tumor cell susceptibility to natural killer cell-mediated death. Pharmacological inhibition of these pathways was shown to enhance tumor cell killing, making them a promising target for cancer therapy.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 11, 2012