Nirmatrelvir Resistance in an Immunocompromised Patient with Persistent Coronavirus Disease 2019.

Although the coronavirus disease 2019 (COVID-19) pandemic is coming to an end, it still poses a threat to the immunocompromised and others with underlying diseases. Especially in cases of persistent COVID-19, new mutations conferring resistance to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) therapies have considerable clinical implications. We present a patient who independently acquired a T21I mutation in the 3CL protease after nirmatrelvir exposure.

[Latent essential thrombocythemia becoming perceptible after splenectomy].

A 47-year-old male was admitted to our hospital because of left hypochondrium part pain and was diagnosed with splenomegaly with splenic infarctions in May 2016. His complete blood cell count was almost within normal limits, and a bone marrow biopsy revealed normal cellularity with no fibrosis. In addition, no abnormal uptake was noted on FDG PET/CT.

[Agranulocytosis during therapy of chronic myeloid leukemia lymphoid blast crisis with dasatinib].

A 61-year-old female was diagnosed with a lymphoid crisis of chronic myeloid leukemia (CML) in February 201X and started chemotherapy combined with dasatinib (DAS). After 1 month of initiating second consolidation therapy, the neutrophils decreased to 1%, bone marrow examination revealed large granular lymphocytes (LGL) at 13%, and complete cytogenetic remission was attained (CCyR). Suspecting DAS-induced agranulocytosis, DAS was discontinued.

A phase I study of capecitabine combined with CPT-11 in metastatic breast cancer pretreated with anthracyclines and taxanes.

Objective: A dose escalation study of biweekly irinotecan (CPT-11) combined with capecitabine was performed to determine the maximum tolerated dose (MTD) and recommended dose (RD) for metastatic breast cancer (MBC) previously treated with anthracyclines and taxanes.

Methods: Escalating doses of CPT-11 (80-120 mg/m(2)) were administered on days 1 and 15. Capecitabine was administered at a fixed dose of 1,657 mg/m(2)/day for 21 consecutive days, followed by 7 days of rest.

Long-term complete remission of metastatic breast cancer, induced by a steroidal aromatase inhibitor after failure of a non-steroidal aromatase inhibitor.

Patient: Female, 56 FINAL DIAGNOSIS: Breast cancer Symptoms: Solid mass in the right breast Medication: Exemestane Clinical Procedure: - Specialty: Oncology.

Objective: Unusual clinical course.

Background: The efficacy of third-generation aromatase inhibitors for hormone receptor-positive postmenopausal metastatic breast cancer is well established.

Association of a novel in-frame deletion mutation of the MYH9 gene with end-stage renal failure: case report and review of the literature.

MYH9 disorders are autosomal dominant diseases characterized by giant platelets, thrombocytopenia, and granulocyte inclusion bodies. These diseases are caused by mutations in the MYH9 gene that encodes nonmuscle myosin heavy chain IIA. We describe the case of a 27-year-old male who presented with macrothrombocytopenia and leukocyte inclusion bodies.

[The ideal follow-up after breast cancer operation].

With the increase in breast cancer patients in Japan, therapy for breast cancer has progressed with evidence-based medicine (EBM), and most of it has shifted to outpatient clinics (OPC) except for surgery. With the specialization of surgical techniques and pharmacological treatments, i. e.

[Palliative chemotherapy for metastatic breast cancer with capecitabine].

We examined 51 patients treated with Capecitabine for metastatic breast cancer. 51 patients achieved a 30.8% response rate, 59.

Mohs chemosurgery for local control of giant recurrent papillary thyroid cancer.

Background: Papillary thyroid carcinoma (PTC) generally has a good prognosis but may have an aggressive course, particularly in the elderly. Standard treatment consists of radioactive iodine and thyrotropin suppression with superphysiological doses of thyroid hormone. Other modalities are less commonly used.

Development of parallel density functional program using distributed matrix to calculate all-electron canonical wavefunction of large molecules.

We developed a new parallel density-functional canonical molecular-orbital program for large molecules based on the resolution of the identity method. In this study, all huge matrices were decomposed and saved to the distributed local memory. The routines of the analytical molecular integrals and numerical integrals of the exchange-correlation terms were parallelized using the single program multiple data method.

All-electron density functional calculation on insulin with quasi-canonical localized orbitals.

An all-electron density functional (DF) calculation on insulin was performed by the Gaussian-based DF program, ProteinDF. Quasi-canonical localized orbitals (QCLOs) were used to improve the initial guess for the self-consistent field (SCF) calculation. All calculations were carried out by parallel computing on eight processors of an Itanium2 cluster (SGI Altix3700) with a theoretical peak performance of 41.

Idiopathic thrombocytopenic purpura and mononeuropathy multiplex.

Peripheral neuropathy is an uncommon complication of idiopathic thrombocytopenic purpura (ITP). We report a 61-year-old man with ITP who developed acute-onset mononeuropathy multiplex. An electrophysiologic study revealed active axonal degenerative alteration, and a sural nerve biopsy showed axonal degeneration.

[A case of advanced gastric cancer which became operable after chemotherapy with combination of TS-1/CDDP and in which complete disappearance of liver metastasis was histopathologically confirmed].

We encountered a patient in whom TS-1/cisplatin (CDDP) combination chemotherapy was effective. The cancer became operable, and complete disappearance of liver metastasis was histopathologically confirmed. The patient was a 65-year-old man who presented with complaints of epigastric discomfort and anorexia.

A rapid biosensor chip assay for measuring of telomerase activity using surface plasmon resonance.

Considerable interest has been focused on telomerase because of its potential use in assays for cancer diagnosis, and for anti-telomerase drugs as a strategy for cancer chemotherapy. A number of assays based on the polymerase chain reaction (PCR) have been developed for evaluation of telomerase activity. To overcome the disadvantages of the conventional telomerase assay [telomeric repeat amplification protocol (TRAP)] related to PCR artifacts and troublesome post-PCR procedures, we have developed a telomeric repeat elongation (TRE) assay which directly measures telomerase activity as the telomeric elongation rate by biosensor technology using surface plasmon resonance (SPR).

Evaluation of the ratio of lymph node metastasis as a prognostic factor in patients with gastric cancer.

BACKGROUND: Lymph node metastasis in patients with gastric cancer is one of the important prognostic factors. However, there is no consensus concerning the best classification for lymph node metastasis as a prognostic factor. So, to evaluate the ratio of the number of metastatic lymph nodes to the total number of dissected lymph nodes (the ratio of LN meta) as a prognostic factor, we compared the ratio of LN meta with lymph node status according to the Japan Classification of Gastric Carcinoma and the total number of metastatic lymph nodes with multivariate analysis.