Chromosome 4 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 4, one copy inherited from each parent, form one of the pairs. Chromosome 4 spans more than 191 million DNA building blocks (base pairs) and represents more than 6 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 4 likely contains between 1,300 and 1,600 genes.

Genes on chromosome 4 are among the estimated 20,000 to 25,000 total genes in the human genome.

DZD researchers discover additional genetic cause for non-alcoholic fatty liver disease

In Germany about 18 million people suffer from non-alcoholic fatty liver. The causes of this disease are manifold and include environmental as well as genetic factors.

19 May 2020

Gene variants can increase risk of schizophrenia, shows study

Variants in a gene of the human immune system cause men and women to have different vulnerabilities to the autoimmune diseases lupus and Sjögren's syndrome, according to findings published in the journal Nature.

19 May 2020

Takeda to present oncology pipeline data at upcoming virtual scientific congresses

Takeda Pharmaceutical Company Limited today announced that the company will present data from its expanding oncology pipeline and established product portfolio at two upcoming virtual scientific congresses: the 56th Annual Meeting of the American Society of Clinical Oncology, May 29-31 and the 25th Virtual Congress of the European Hematology Association, June 11-14.

18 May 2020

Variations in genome’s 'dark matter' region can make patients susceptible to inflammatory diseases

A study led by researchers at the Babraham Institute in collaboration with the Wellcome Sanger Institute has uncovered how variations in a non-protein coding 'dark matter' region of the genome could make patients susceptible to complex autoimmune and allergic diseases such as inflammatory bowel disease.

14 May 2020

Researchers use “gene drive” technology to eliminate malaria mosquitoes in lab experiments

A modification that creates more male offspring was able to eliminate populations of malaria mosquitoes in lab experiments.

13 May 2020

Scientists uncover important functions of a special protein during cell division

In a new study, researchers from the University of Copenhagen have discovered two important functions of a protein called RTEL1 during cell division.

12 May 2020

Woman's genetic make-up may play a role in weight gain from birth control

A woman's genetic make-up may cause her to gain weight when using a popular form of birth control, according to a study from researchers at the University of Colorado Anschutz Medical Campus.

12 May 2020

Study: Recombination is crucial for proper segregation of chromosomes into germs cells

From avocado plants to baker's yeast, humans to zebras, sexually reproducing organisms must create germ cells that contain half the number of chromosomes found in a typical body cell.

7 May 2020

Harmful effects of BPA can be reversed by administering coenzyme Q10

Exposure to bisphenol A (BPA), an industrial chemical used to make certain plastics and resins, inner coatings for food cans and bottle tops, thermal paper used in store receipts, dental sealants and so on, is a concern because of possible adverse health effects, including a reduction in fertility.

7 May 2020

Study provides more insight into the initiation and progression of human cancers

Volume 11, Issue 18 of @Oncotarget Clinical implications of chromatin accessibility assessed by ATAC-seq profiling in human cancers especially in a large patient cohort is largely unknown.

6 May 2020

COVID-19 infection risk and outcomes explained by the cell receptor genetic variability

Genetic variants in the angiotensin‐converting enzyme 2 (ACE2) receptor, utilized by the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) for cell entry, are predicted to either encourage or inhibit interaction with viral proteins and subsequently contribute to genetic risk in coronavirus disease (COVID-19). This is the key finding of a new study available on the preprint server bioRxiv*.

5 May 2020

New therapeutic possibilities for treating intellectual disability in Down syndrome

A team of researchers has studied the neural basis of intellectual disability in mice with Down syndrome and has discovered that the neural networks of brain circuits relevant to memory and learning are over-activated and that the connectivity of these circuits is poor.

5 May 2020

Researchers describe an underlying biological basis for mylagic encephalomyelitis/chronic fatigue syndrome

Mylagic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disabling and complex illness. Affected persons often cannot pursue ordinary activities -- physical or mental -- because of an incapacitating loss of energy and other symptoms, and may find themselves confined to bed or house-bound for years.

28 Apr 2020

New study indicates novel therapies for Duchenne muscular dystrophy

When an actor is unable to perform in the theatre, an understudy--ideally one with some practice in the role--can take her place on stage.

25 Apr 2020

Bayreuth researchers discover natural protective mechanism against cancer

Susanne Hellmuth and Olaf Stemmann from the Chair of Genetics at the University of Bayreuth have discovered a natural protective mechanism that leads to the programmed death of potentially diseased cells.

23 Apr 2020

Researchers discover physiological mechanisms underlying pediatric B-ALL

B-cell acute lymphoblastic leukemia (B-ALL) is characterized by the accumulation of abnormal immature B-cell precursors in the bone marrow and is the most common pediatric cancer.

23 Apr 2020

ACE2 genetic variants may influence coronavirus disease progression

Researchers in British Columbia have identified a set of gene variants that are likely to influence disease progression from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection to COVID-19 disease.

15 Apr 2020

Mutated ATP1B gene a risk factor for Parkinson’s

The brain consists of about 100 billion neurons that form a complex and interconnected network in our brain, allowing us to generate complex thought patterns and actions. These neurons or nerve cells are the functional units of the nervous system that process and transmit information around the body. Neurodegenerative diseases develop with the progressive loss of these neurons.

14 Apr 2020

New mathematical model can help explain why so many pregnancies and IVF attempts fail

Scientists have created a mathematical model that can help explain why so many pregnancies and in vitro fertilization attempts fail.

13 Apr 2020

Why do so many pregnancies and in vitro fertilization attempts fail?

Scientists have created a mathematical model that can help explain why pregnancies and in vitro fertilization attempts fail.